Magazine-gun.



(Application lell Jan. 11, 1902.)

Patented sept. 30, |902.

(No Model.)

2 Sheets-Sheet l.

Tn: Nonms persas bo. Puurs-LITRO.. wAsmoTon. n.1;

Patented sept. so, |902.

' Y.1. M. BRowNlNG.

" MAGAZINE GUN.

l ipplcation filed Jan. 11, 1902.)

Imp Modell) 2 Sheets-Sheet 2.,

UNITED STATES A PATENT OFFICE.'

JOHN M. BROVVNING, OF OGDEN, UTAH.

. MAGAZINE-GUN.

SPECIFICATION forming partl of Letters Patent No. 710,094, datedSeptember 30, 1902. Application filed January 1l, 1902- Serial No.89,295. (No model.)

To LZZ whom t may concern:

vBe it known that I, JOHNYM. BRowNINe, of Ogden, in the county of Weberand State of Utah, have invented a new and useful Improvement inMagazine-Guns; andl do here-v by declare the following, when taken inconnection with the accompanying drawings and the characters ofreference markedA thereon,

to be a full, clear,and exact description of the same,and which saiddrawings constitute part of this specification, and represent, in

Figure l, a view in broken vertical longitudinal section of a gunconstructed in accordance with myinvention, showingit closed and locked;Fig. 2, a similar view showing the gun closed and unlocked; Fig. 3, adetached plan view of the breech-bolt, showing its locking-block,handle, and extractor; Fig.

4, a view of the gun in broken longitudinal section, showing itsbreech-closure at the limit of its rearward excursion, its pivotedcarrier in its depressed or cartridge-receiving position, and thelockinge'dog mounted in the rear end of the said carrier in engagementwith the breech-closure; Fig. 5, a detached view in side elevation ofthe locking-block; Fig. 6, a detached plan View thereof; Fig. 7, adetached View thereof in rear elevation; Fig. 8, a broken plan view ofthe operatingslide, showingitsconnection with the forward end of theoperating-link and the locking# block, which is shown in sectionyFig. 9,a broken horizontal section of the barrel eX- tension, showing theejection'cam and a cartridge; Fig; l0, a view in rear elevation of thebarrel extensin; Fig. 1l, a V'perspective view of the lejection-cam.

My invention relates to an improvement in that class of automaticsmall-arms in which the recoilis utilized for reloading and recockingand may be said to be an improvement upon the arms shown and describedin United States Patent No. 659,507, granted to me October 9, 1900, andUnited States Patent No. 689,283, grantedto me December 17, 1901.

The object of my present invention is to improve suchan arm in respectof its bolt locking and ejectng features, whereby it is simplified andmade more effective.

With these ends in View my invention consists in the combination, withabreech-bolt or breech-closure, of a locking-block carried thereby andswinging from its rear end and means for operating the said block.

My invention further consists in the combi* nation,with a breech-bolt orbreecl1-closure,of

va locking-block mounted therein and one or more segmental ribs on whichthe said block swings instead of upon a true pivot. Y

My invention further consists in the combination, with` thebreech-boltvor breech-closure, of an extractor' carried thereby and anejection-cam which lifts the spent shell out of engagement with theextractor just prior to the ejection of the shell.

My invention further consists in certain details of construction andcombinations of parts, as will be hereinafter described, and pointed outin the claims.

In carrying out my invention as herein shown I employ a locking-block 2,provided on the'opposite faces of its rear upper corner with twocorresponding segmental ribs 3, upon which the block swings instead ofupon a true pivot. The said block is located in a large slot or chamber4, formed to receive it in the breech-closure 5, which is in this caseof the bolt type, inasmuch as it is confined to movement back and -forthin a straight line. The said segmental ribs 3 take into correspondingsegmental grooves 6, formed in the rear ends of the side walls ofthechamber 4 aforesaid.. If desired, however, theA positions ofthe saidribs and grooves may be reversed. The said ribs 3 are struck from orabout thek point a on Fig. 5, and therefore from a point outside of thelocking-block 2, the front face 7 of which is struck from the samepoint. What I Wish to call particular attention to in this connection isthat by having the block swung upon segmental ribs instead of upon atrue pivot the center from which the block swings may be located outsideof the block itself. The said blockis provided at its forward end with aheavy rectangular locking-lug 8,-adapted to enter a correspond- 4inglocking-opening 9, formed i-n the eXten- IOC) as at 8, on a circlestruck from a point a on Fig. 5, which shows that. the point a is alittle distance above the point ct before mentioned.

For the operation of the locking-block 2 I employ, as herein shown, along operatinglink 13, the forward end of which is connected with therear lower corner of the said block by means of a pivot 14 and the rearend of which is formed with a nose 15, entering a socket 16, formed inthe head 17 of a plunger 18, which is set into the forward end of acoiled operating-spring 19, which is located partly in t-he tane,` 20 ofthe arm and partly in the butt-stock thereof. Neal' its forward end thesaid link 13 is formed with a shoulder 21, which is engaged by a lug 22,projecting inward from the rear end of an operatingslide 23, located ina deep groove 24, formed in the right-hand side of the breech-bolt 5,the said slide being furnished at its forward end with anoutwardly-projecting handle or linger-piece 25. This operating-slide isused for manually opening the gun for loading the first cartridge intothe gun-barrel as well as for manually unloading the gun. On its underface it is formed with a locking-shoulder 26, which is engaged by alocking-dog 27, mounted in the extreme rear end of the pivoted carrier2S.

When the bolt 5 reaches the limit of its rearward excursion with thebarrel 12 and the barrel extension 10, the said locking-dog 27 springsup in front of the shoulder 26 of the operating-slide 23. Now when thespiral barrel-spring, which is not shown, but which corresponds to thebarrel-spring of InyPatent No. 689,283, reacts to restore the barrel 12to its normal position it operates through the said barrel, barrelextension, and lockingblock to pull the breech-bolt forward. Thisforward draft upon the breech-bolt effects the swinging of thelocking-block 2 downward into its unlocked position, whereby itslocking-lug S is cleared from the locking-opening f) of the barrelextension, ybecause the pivot 14 of the locking-block 2 is preventedfrom moving forward for the reason that the same passes through theoperating-link 13, which is connected with the operating slide 23through the engagement of the lug 22 of that slide with the rear edge ofthe locking-block 2. Vhen the locking-block has been swung downwardintoits unlocked position, its rear edge is engaged by the rear wall of theslot 4, formed in the breech-bolt for the reception of the said block,whereby the forward movement of the bolt is arrested. The lockingblockis now in position for the entrance into a locking-notch 29, formed inits lower edge, of the rear end of locking-lever 30, mounted upon a pin31 and operated by a short spiral spring 32, pressing downwardly uponits forward end. The barrel and barrel extension continuing in theirforward movement open the space required between the rear end of thebarrel and the forward end of the breechbolt for the feeding upward of acartridge by the pivoted carrier 28 into position in front of thebreech-bolt for the same to force it forward into the gun-barrel whenthe bolt is released through the agency of the carrier in the samemanner as provided for in either of my prior patents herein referred to.The said locking-lever 30 maintains the lockingblock 2 in its unlockedposition during the greater part of the forward excursion of the boltand at least until after the locking-lug 8 of the locking-block has beenentered into the rear end of the barrel extension 10, after which therear end of the said locking-lever is depressed and forced out vof/thelockingnotch 29 of the locking-block 2 by means of a nose-33, formed atthe extreme forward end of the operating-link 13. The action of the saidnose upon the said lever is a gradual one and caused by the gradualassumption of a horizontal position by the said link as it moves forwardwith the barrel, barrel eXtension, and bolt, its rear end beingdepressed somewhat below its forward end when its forwardmovement'begins.

To manually open the gun, the handle 25 of the operating-slide is usedfor drawing the slide rearward against the tension of the spring 19, thelug 22 at the rear end of the slide being engaged with the shoulder 21of the link 13, and the link 13 being pivotally connected with thelocking-block the same is swung downward into its unlocked position,whereby 'the breech-bolt is freed for being drawn back into itsfully-open position, in which it is held by the engagement of thelocking-dog 27 with the shoulder 2G of the slide, this connection beingmaintained until the carrier is released for breaking the connectionbetween the locking-dog and the slide. The said locking-block is formedwith a large centrally-arranged clearance-slot 34 for the clearance ofthe firing-pin 35, which is mounted at its rear and forward ends in thebolt 5, in which its reciprocating movement is limited by a stop-pin 36.The said firing-pin is retracted by the engagement of the walls of thenotch 37, formed in the rear end of the locking-block, withretracting-shoulders 38, formed near the rear end of the pin.

For facilitating ejection of the cartridges I employ an ejection-cam 39,which is located in a suitable recess 40, entering the rear edge of theleft-hand wall of the barrel extension lO, as shown in Fig. 10. Thisejection-cam comprises two inclines 41 4l, which are separated from eachother Vby the width of the guideway 42, formed i'n the inner face of thesaid wall of the barrel extension for the lefthand extractor-hook 43 totravel in. Each of the said inclines terminate at its rear end in anejecting-shoulder 44.

When the gun is fired, the spent shell is thrown back with the barrel,barrel eXtensi'on, and breech-bolt, the extractors 43 and 45 of whichare engaged with it. Now when the barrel extension, and hence thebarrel,

IOO

IIO

at the rear ends of the said inclines strike the shell with sufficientforce to eject it from the gun. The employment'of the described ejecytion-cam for lifting the shell out of engagement with the hook of theextractor enables me to construct the saidlhook so as to positivelyengage the rim of the shell, whereas in prior constructions it has-beennecessary to make the gripping edgeof the hooksomewhat beveled oroblique, and therefore less positive in its action on the heads of theshells. It will be understood, of course, that the ejection-cam willoperate to lift the cartridge away from the left-hand extractorhook incase the gun is opened manually for 'unloading it or `removing a misre;but in the latter case the cartridge will be drawn back out of (thegun-barrel and engage with the ejection-cam instead of having thegunbarrel stripped over it, so to speak, as oct curs when the gun isautomatically operated.

In view of 'the modifications suggested and of others which mayobviously be made I- would have it understood that I do not limit myselfto the exact construction herein shown and described, but hold myself atliberty to make such variations therefrom as fairly fall within thespirit and scope of my invention.

I am aware that it is old to provide a breechloading firearm with aswinging breech-closure turning upon segmental ribs instead of upon atrue pivo't, the ribs being struck from a center located aboveV thebreech-closure. Such a construction is shown in United States Patent No.160,748, granted March 16, 1875, to Edwin Burt. l v

Having fully described my invention, what I claim as new, and desire tosecure by Letters Patent, is- Y 1. In a gun, the combination with abarrel having a barrel extension, of a reciprocating breech-closureformed with an upwardly-opening vertical slot, a locking-block locatedin the Vsaid slot and adapted at its forward end to extend upwardthrough the slot to engage with the said barrel extension, one or more-segmental ribs on which the locking-block swings instead of upon a truepivot, and means connected with the lower` portion of 'the block forswinging it into its locking and retired positions.

2. In-a gun, the combination with a lbarrel having a barrel extension,of a reciprocating breech -closure, a lockingblock mounted therein andadapted to engage at its forward end with the upper portion of thebarrel extension to lock the breech-closure in its closed position, twosegmental ribs upon which the locking-block swings from its rear endinstead of upon a true pivot, an operating-link connected directly withthe rear end of the lower portion of the said locking-block, anoperating-spring coacting with the said link, and means coacting withthe lower portion of the said block for locking the same in its retiredposition.

3. In a gun, the combination with a barrel having a barrel extension, ofa breech-closure, an extractor carried thereby, and an ejection-cammounted in the barrel extension and acting Yto lift the spent shell outof engagement with the extractor.

4; "In a gun, the combinationwith a barrel having a barrel extension, ofa breech-closure, an extractor carried thereby, and an ejection-cammounted in the said extension and formed with two inclines separatedfrom each other sufficiently to permit the extractor to pass betweenthem, and operating to lift the spent shell out of engagement with theextractor, and also formed with one or more ejecting-shoulders.

5. In a gun, the combination with the breech-closure thereof, of alocking-block mounted in the said breech-closure so as to swing from itsrear end as upon a center located abo've the upper edge of the block.

In testimony whereof I have signed this specification in the presenceoftwo subscrib- Witnesses:

FREDERIC C. EARLE, C. L. WEED.

IOO

